diff --git a/.travis.yml b/.travis.yml
index cfdc0571..a9ffc9a7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ node_js:
   - "0.12"
 before_install:
   - sudo apt-get install libboost1.48-all-dev
-  - sudo add-apt-repository ppa:bitcoin/bitcoin
+  - sudo add-apt-repository -y ppa:bitcoin/bitcoin
   - sudo apt-get update
   - sudo apt-get install libdb4.8-dev libdb4.8++-dev
   - git config --global user.email "dev@bitpay.com"